1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d382b524c05610c592358f53f86476a247e704ddbd749ae44e22508e159ddd. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0182a62e-1a86-437c-ad5a-8bf5252ae2cc.json and https://artists.proofprofile.net/proofs/artist/0182a62e-1a86-437c-ad5a-8bf5252ae2cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15449bad9f084802c34772d1fb48dc2065185fccf42b5a8357f2e58fda7c5fed. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72188637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94af98fde9d920953d6837703dc60e04828f49f9c3939b046f281ed433863b5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72188639.
Ken Patera (feat. Knowledge The Pirate & Remy Banks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc983311051d7aacfabefbd80fa8aa7a96cb59266a03233aa2768a722dbfa1173. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72188640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882b30ecf26c04c7ddbf5640c666f4a16ef8284a037f51f6df062279a03d71fb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72188641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ba4c35f6bcbc4c5399bbf5957e4b60581204174e37516d40b70f535391db67. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92379222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0cd91f1183b535ffb50746839bed6e67397d99071ce52fa048b24f0ef312dd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92379228.
The Amazing Randi (feat. Kool Keith & Fatboi Sharif)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142da7108a4f125dc59f0af1c34fcdcde47d2d8fc3cd0abcc26d653263e802e9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2320405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519dec7dbaea0cbe06e87dc698b6dca50fcb558d4cf5b52314cee4e76c892f0d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2320407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6192f32ebd1ceffe923337604ac6e428f59daefdf3334c5941f68ce2a29067c6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2320411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453bb650a1fcc4881c7254abb10ca78b8206f400c4f11a1d9ff2e83b44e18739. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2320414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4a14c22d9e92090e5a641bdb64ce61fcb591d33f2a163cb3535310ea327c5f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2320415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068a9a80beb136fc4594803acde7355c976057234dd9da5c59976148af80f054. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2320417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8b556648f51d16401822290d27e83c4450c7f508e4b4715d32f14cda3fe288. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2320418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf3a51900b4dd2e35cc36973c112b56b52c2dff3f9f5ea6b4368be288f2c31c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRIDO2410419.
Temple Needs Water. Village Needs Peace.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7b372b2d18c36256a8d29afe776b1e034dd600ebca6aaca7e2c5222158f7c7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRIDO2410422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf3a51900b4dd2e35cc36973c112b56b52c2dff3f9f5ea6b4368be288f2c31c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRIDO2410419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a653a5622ad052157e24d0501ab7e36ecc25dd36bd4aaa52dce20317e1a03a0. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRIDO2410423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91626ef6fbe5f4d3649e5a899b778fc6945e7b1623152cd6058796c778fed983. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRIDO2410424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7bbd902f02549ab540d94d880f22b9cb7526cca3729254f1de021820abb6ba. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22231731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b25fbca575cc21011d37827344bec7d2bf404a0a80ddef2445d56b67da2d354. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22231732.
Tokyo Blunts (feat. Armand Hammer & Conquest Tony Phillips)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe378e2bea88633628c0a4e051b7ee76e9b45b9e8790fe0ed9db5f64ea1481228. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22231733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe28656cfe23d9a00701941892c91a460eb7b5b474cbba444a0f2f887a9c95b5. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22231735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74fc3b7791b19c2ad69ed54d183cd207d4af455aae3074f549bfc4691e9bfb3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22231736.
Pour the Wine (feat. Peso Gordon & Chuck Strangers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cc13cbda145caef93c820c333403382ea92c846ae1a6b30b225f259d8bc066. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22231737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5d4c18ebb6552e77cfaf382e60c4ea2e0766e35f6ff264c348bd5ab2682a8c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22231738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b25fbca575cc21011d37827344bec7d2bf404a0a80ddef2445d56b67da2d354. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22231732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe7c68b4a00a766b7fe2f083221d436b46b77dc660b39ea80d071f506df3f4d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2445481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa7b0b07518d7b39bfe4d2eec6a7b97e3b71bc4384868bc0c10187bb6688360. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2445482.